1. Department of Otolaryngology, Head and Neck SurgeryLouisiana State University Health Sciences Center Shreveport Louisiana
2. Feist‐Weiller Cancer CenterLouisiana State University Health Sciences Center Shreveport Louisiana
3. Department of PathologyLouisiana State University Health Sciences Center Shreveport Louisiana
4. Division of Pharmacology and Toxicology, College of PharmacyThe University of Texas at Austin Austin Texas
5. Department of SurgeryOverton Brooks Veterans Affairs Hospital Shreveport Louisiana